KNX Universal Dimming Actuator,1/2/4-Fold (hereinafter referred to as Dimmer) has 1/2/ 4output channels, and it can connect with dimmable lamps (such as incandescent lamps,halogen lamps, energy-saving lamps, LED, etc.), and you can dim, preset scene, switch theselamps or other operations via the bus. In addition, as well as KNX Data Secure.